Bowl brush base



FIG. 1 is a perspective view of a brush base embodying this invention, with a phantom view of a brush handle extending from the base;

FIG. 2 is a top view of the brush base shown in FIG. 1, with a phantom view of the top of a brush within the base;

FIG. 3 is an elevation view of the brush base shown in FIG. 1, with a phantom view of a brush handle extending from the base;

FIG. 4 is a side elevation view of the brush base shown in FIG. 1, with a phantom view of a brush handle extending from the base; and,

FIG. 5 is a bottom view of the brush base shown in FIG. 1.

The partial broken-line disclosure of the brush in the views is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a bowl brush base, as shown and described. 